src/zerocoin/ParamGeneration.h

   1 /// \file       ParamGeneration.h
   2 ///
   3 /// \brief      Parameter generation routines for Zerocoin.
   4 ///
   5 /// \author     Ian Miers, Christina Garman and Matthew Green
   6 /// \date       June 2013
   7 ///
   8 /// \copyright  Copyright 2013 Ian Miers, Christina Garman and Matthew Green
   9 /// \license    This project is released under the MIT license.
  10
  11 #ifndef PARAMGENERATION_H_
  12 #define PARAMGENERATION_H_
  13
  14 namespace libzerocoin {
  15
  16 void CalculateParams(Params &params, Bignum N, std::string aux, uint32_t securityLevel);
  17 void calculateGroupParamLengths(uint32_t maxPLen, uint32_t securityLevel,
  18                                 uint32_t *pLen, uint32_t *qLen);
  19
  20 // Constants
  21 #define STRING_COMMIT_GROUP         "COIN_COMMITMENT_GROUP"
  22 #define STRING_AVC_GROUP            "ACCUMULATED_VALUE_COMMITMENT_GROUP"
  23 #define STRING_AVC_ORDER            "ACCUMULATED_VALUE_COMMITMENT_ORDER"
  24 #define STRING_AIC_GROUP            "ACCUMULATOR_INTERNAL_COMMITMENT_GROUP"
  25 #define STRING_QRNCOMMIT_GROUPG     "ACCUMULATOR_QRN_COMMITMENT_GROUPG"
  26 #define STRING_QRNCOMMIT_GROUPH     "ACCUMULATOR_QRN_COMMITMENT_GROUPH"
  27 #define ACCUMULATOR_BASE_CONSTANT   31
  28 #define MAX_PRIMEGEN_ATTEMPTS       10000
  29 #define MAX_ACCUMGEN_ATTEMPTS       10000
  30 #define MAX_GENERATOR_ATTEMPTS      10000
  31 #define NUM_SCHNORRGEN_ATTEMPTS     10000
  32
  33 // Prototypes
  34 bool                primalityTestByTrialDivision(uint32_t candidate);
  35 uint256             calculateSeed(Bignum modulus, std::string auxString, uint32_t securityLevel, std::string groupName);
  36 uint256             calculateGeneratorSeed(uint256 seed, uint256 pSeed, uint256 qSeed, std::string label, uint32_t index, uint32_t count);
  37
  38 uint256             calculateHash(uint256 input);
  39 IntegerGroupParams  deriveIntegerGroupParams(uint256 seed, uint32_t pLen, uint32_t qLen);
  40 IntegerGroupParams  deriveIntegerGroupFromOrder(Bignum &groupOrder);
  41 void                calculateGroupModulusAndOrder(uint256 seed, uint32_t pLen, uint32_t qLen,
  42         Bignum *resultModulus, Bignum *resultGroupOrder,
  43         uint256 *resultPseed, uint256 *resultQseed);
  44 Bignum              calculateGroupGenerator(uint256 seed, uint256 pSeed, uint256 qSeed, Bignum modulus,
  45         Bignum groupOrder, uint32_t index);
  46 Bignum              generateRandomPrime(uint32_t primeBitLen, uint256 in_seed, uint256 *out_seed,
  47                                         uint32_t *prime_gen_counter);
  48 Bignum              generateIntegerFromSeed(uint32_t numBits, uint256 seed, uint32_t *numIterations);
  49 bool                primalityTestByTrialDivision(uint32_t candidate);
  50
  51 }/* namespace libzerocoin */
  52
  53 #endif /* PARAMGENERATION_H_ */